September along the Diagonal turns everything gold at the edges, the sod fields out toward Niwot, the ditch grass, the last long push of growth before frost. Boulder County Lawn Care runs the season all the way to its end, mowing while the turf still wants to grow, edging the walks back to a straight line, clearing leaves once the cottonwoods finally let go. Fall is when a Longmont lawn earns the following June, and the work shows it: regular cuts, clippings managed, borders cleaned out before the ground goes hard. There is real pride in a yard put to bed properly, nothing left ragged heading into the cold. Up west the peaks take their first white while the valley stays green a few weeks longer.